Dumping-car.



No. 802,532. w PATENTBD 00T. 24, 1905.

' R. H.. STEVENS.

DUMPING GAR.

APPLICATION FILED JUNE 9.1905.

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MTE-:MBD 00T. 24,1905.

R. H. STEVENS. DUMPING CML APPLICATION FILED JUNE 9,1905.

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trarne rATlENT RICHARD H. S'llVENS, OF MUNHALL, PENNSYLVANIA, ASSlGNOlt OF ONE-HALF TO PER TORSTEN BERG, OF STOCKHOLM, SWEDEN.

DUiVlPUNGi-CR- Specification of Letters Patent.

Patented. Oct. 24, 1905.

Application filed June 9, 1905. Serial N0- 264.431-

To all 'lult/)771, '[225 Ntrty/ cm1/cern.:

Be it known that I, RICHARD H. STEVENS, of Munhall, Allegheny county, Pennsylvania, have invented a new and useful Dumping-Oar, of which the 'following is a full, clear, and eX- act description, reference being had to the accompanying drawings, forming part oi' this specification, in which Figure 1 is a sectional end elevation showing a ladle-car provided with one form oi' my invention. Fig. 2 is a partial side elevation of the same.

My invention relates to dum ping-cars which are tipped in either direction, more especially to ladle-cars.

The object of the invention is to provide connections by which a stationary motor may tilt the car in either direction, and, further, to provide simple and eiiicient means for holding the car in vertical position.

ln the drawings, 2 represents the ladle supported at its ends upon trunnions 3, to which are keyed gear-wheels 4, meshingwith stationary racks 5 upon the end frame o'l the car. The motor which tips the car is applied at one end only and in this form consists of a pneumatic, steam, or hydraulic cylinder 6, rigidly secured to the framing. The piston-rod 7 of this double-acting cylinder issecured at its outer end to a cross-head 8, having two lower integral tubular guides 9, which slide over two guide-rods 10. These guide-rods are secured to their outer ends to the stationary bracket 11, and their other ends rest in holes in stationary brackets or lugs 1Q.

A rack 13, having teeth 14, which mesh with the teeth in the gear-wheel 4, is pivoted at one end to the upper end oi" the cross-head 8. The rack is normally in mesh with gear-wheel 4, but may be lifted and held with its teeth out of engagement with the gear-wheel 4 by means of an idler-roller 15 in the longitudinal slot 16 in the rack. The idler-roller 15 is eccentrically mounted on the sha-ft 16, which is carried in bearings on the bracket 17, mounted on the end of the cylinder 6. The rack 13 is lifted into and out of engagement with the teeth on the gear-wheel i by means of a hand-lever 18 on the end or' the eccentric-shaft 16', and the movement oi'V said lever is limited by the stops 19 on the bracket 17.

With the parts connected as shown in Fig. i. when iiuid is admitted to the right-hand end of the cylinder it will exert a push action through the cross-head upon the movable rack connection to the gear-wheel, and thus tilt the ladle in a counter-clockwise direction until the ladle-body strikes the side frame member 20, which acts as a stop. y The ladle is tilted back to normal position by admitting fluid to the other end of the cylinder in the usual manner. Iii' it is desired to tilt the ladle in a clockwise direction, the movable rack 13 is raised by means ot' the lever 18 until the teeth in the rack are out of engagement with the teeth in the gear-wheel 4. Fluid is admitted to the cylinder to move the rack until the teeth near the pivotal end of the rack are above the gear-wheel 1. The position of the handlever 18 is then reversed, and the teeth of the rack are brought into engagement with the teeth of the gear-wheel, the piston then being at or near the left-hand end of the cylinder. Now ii fluid is admitted to the lefthand end of the cylinder it will pull upon the rack 13 and swing the ladle in a clockwise direction until the ladle-bodystrikes the frame 2O on its side. The tilting to normal position will be carried out by admitting iiuid to the right-hand end of the cylinder. In both cases the stroke ofthe piston is less than the length of the cylinder, which stopping at an intermediate point in the length of the cylinder when the ladlestrikes is stopped by the frame 2O in its downward movement. y

In order to lock the ladle in upright position when arranged for tilting' in either direction, I provide a spacing-collar 21 upon the guide-rod 10, and upon a locking.- rod 22, mounted in bearings 23 on the frame, I provide two latches or pawls 24. These latches are rigidly secured to the locking-rod and their bottom portions are shaped as shown in Fig. 2, so that when they are swung forward they will rest in line with the guide 9. rlhe depending bent handles 22 then hold them in this position. 1n the position shown in Fig. 1 the ladle isl locked in vertical position by the collar 9, which is held between the stationary bracket 11 and the latch 24. When arranged ior tiltingI in the opposite direction, the collar 9 will be similarly held between the spacer 21 and the other pawl 94 near the central portion of the rod 22. The ladle is unlocked in either position by turning the rod through either handle 22.

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Instead ol using' a motive cylinder l may employ gearing or actuating' connections for moving' the cross-head.

The advantages of my invention result from the simplicity of the device and the ease of changing it for tilting' in either direction. The stationary portion of the motor is stationary at all times and is not shifted in chang'ing the direction of tilting.

Another advantage of my construction is that the pressure is applied to the gear-Wheel at a point above the axis of rotation, so that a longer lever-arm is obtained, enabling a smaller motor to be used.

rlhe apparatus may be applied to existing` ladle-cars and is efficient and economical.

Vhere a motor-cylinder is employed, the piston may be stationary and the cylinder movable, and many other changes may be made in the form and arrangement of the motor and connections Without departingr'rom my invention.

I claimm l. Atipping' car having' astationary motor, a cross-head actuated thereby, and a movable rack connected with the cross-head and having teeth engaging' with the teeth of a gearvwheel on the trunnion; substantially as described.

2. A tipping car having' a motor with its stationary portion stationary at all times, the movable portion of the motor having a rack adapted to tilt the car by engagement with a gear-Wheel on the car, and means for adj usting the rack to ditterent relative positions with the gear-Wheel, While the stationary motor portion remains in a fixed position; substantially as described.

3. A rolling and tipping car having' a motor with its stationary part stationary at all times, the movable portion of the motor having a rack arranged to tilt the car, and means for adjusting the rack to different relative positions With the gear-wheel; substantially as described.

4. A tipping' car having a movable crossliead, a movable racl; pivoted to the crosshead and having a plurality of points of connection to the gear-Wheel on the trunnion, and means for moving the cross-head endwise; substantially as described.

5. A tipping car having a movable crosshead, a rack pivoted to the cross-head and having' a plurality of points ol connection to the gear-Wheel on the trunnion, means for moving' the cross-head end wise, and means for locking the car-body in vertical position; substantially as described.

6. A tilting car or ladle having' a guidingrack connected to its trunnions above the axis of rotation; substantially as described.

'7. A rolling and tilting' ladle supported on trunnions, a rack connected to one ot' the tr unnions means for moving' the rack into and out of engagement with the trunnion, and a inotor arranged to either push or pull the rack Without shifting the stationary portion of the motor; substantially as described.

8. A ladle-car having atrunnioned ladle, a motive cylinder having one part stationary and a movable bar connected to a cross-head and a rack extending from the cross-head and having' shiftable connection with the trun- -nions, the stationary part or' the motor remaining in its fixed position during the shifting' of the rack connection; substantially as described.

' 9. Aladle-carhavingamotivecylinderwith one element stationary, a cross-head connected to the movable element, a rack pivoted to the cross-head and a shifting device for moving the rack into and out of engagement with the trunnion; substantially as described.

lO. A car having a tilting ladle mounted on trunnions, a motive cylinder having' one element stationary at all times, a cross-head connected to its movable element, a racl; connected to the cross-head and engaging with the trunnion above its center of rotation, and a shifting device for moving said rack into and out of engagement With the trunnion; substantially as described.

ll. A tipping car having a trunnion provided With a gear-Wheel, a motor, a rack connected with the motor and arranged to intermeshwith the gear-Wheel, and mechanism for moving the racl into and out of mesh with the gear-wheel to intermesh the same in different positions; substantially as described.

In testimony whereofl l have hereunto set my hand.

RICHARD H. STEVENS.

lVitnesses:

W. H. CORBETT, R. D. LITTLE.

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